Instead of sitting in dorm, surfing the Internet and munching on junk food by themselves, college students should grab a few friends and hit the gym to decrease their stress levels and stay healthy, both mentally and physically.

According to study in the American Journal of Health Promotion, socializing is a huge part of college students' engaging in physical activity, better mental health and less perceived stress. The study showed that some benefits of physical activity and exercise actually comes from the social aspects.

"Often individuals with depression or anxiety benefit from social experiences as much or more than exercise. The combination of exercise and social activity may be a positive thing," said the spokesperson for the American Psychiatric Association.

It's recommended that college students should exercise at least 30 to 60 minutes, three or more times per week.

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